Attachment hook for safety belts



May 22, 1928.

1,670,411 A. G. ILLCH ATTACHMENT HOOK FOR SAFETY BELTS Filed April.5, 1926 IIIIIIIII INVENTOR Patented Me 22, 1928.

PATENTTOFFICE.

Anson e. ILLCH, or Newman, 1:. Y.

'hr'moamm a noon Eon SAFETY BELTS.

- Application filedApril 3, .1926. 4 Serial No. 99,472. 1

This invention relates to improvements in attachment hooks secured to window casings to provide a means by whlch a window cleaner may attach his. safety belt as a precautionary measure against falling.

An object of this invention is to provide a device of the character described which may be applied to a hollow windowcasing.

Another object is to provide a device of the character described which may be readily secured andattached to a window casing by a minimum amount of labor; and also provide a device which maybe manufactured at a minimum cost.

These objects are attained by means of the device illustrated in the accompanying drawings in which i Figure 1, is a top View of the device shown attached to a window casing.

Figure 2, is an elevation of the device at tached to the window casing and shows a method of locking the device upon same.

Figure 3, is a detailed view which shows the method of applying the device to and upon the window casing.

Figure 4, shows a modified form attached to window casing. 1

Figure 5, is a sectional elevation, Figure 6, a section on line 6-6, and Figure 7 a modified form of this device.

Referring to the drawings in detail, 1, designates an attachment hook to which the window cleaners safet belt may be secured, while 2, is a U shape prolongation of the hook and is adapted to extend through the perforations 3 and4 in the window casing 5. One end of the U shaped bolt is threaded as at 6, to take a lock-nut 7. To facilitate the operation of threading the device through perforations 3 and 4, the U shaped section of the device is slightly ofi-setas at8; and in order to feed the devicethrough perforation 3, in casing 5, it is necessary to hold the device in a horizontal position as shown in Figure 3. After the main part of the U shaped section has entered the perforation 3, the device is turned at right angle so that the threaded portion 6, points downwardly to line up with the perforation 4, thus holding the device in a vertical position when finally secured. As a precautionary measure against the dis lacement of the nut 7 which is applied a ter the threaded section 6,has been passed through the perforation 4, the end of the threaded'section 6, may be hammered down over the nut thus positively preventing the displacing of same. It

will be noted, howeveiythat even with the nut removed, the device will hold upon the casing and cannot be accidentally dislodged.

To take the pressure or strain of any weight which may be attached to the hook I, the U shaped section 2, is formed with a projecting bearing member 9, which is pulled tightly against the casing 5, after the nut 7, is threaded upon the end 6. In place of an ordinary nut 7, an attachment, member 7 may be provlded, which screws over the threaded end 6, as shown by dotted. lines in Figure 2, and, in place of either nut or attachment member a tap screw, may be employed.

In Figure 4, there is shown a modified form of this device which engages through the casing 5, through perforations 3 and 10, and this device consists of an attachment member 1, and a bar 11, turned in a quadrant and provided with a threaded end 12, and lock-nut 13. This form of device is applied in horizontal position through adja cent sides of the casing as clearly illustrated. I

The embodiment as shown in Figure 5, consists of complementary members 14 and 15, each of which is formed with a half head 16 and 17, respectively and with prongs 18 and 19, which areadapted to engage through perforation 20, in the casing 5..

One side of the prongs 18 and 19, are curved as at 21 and 22, and the said curved surfaces roll together as the head sections are sepa-f rated during the process of attaching the de-. vice to the casing, as shown by dotted lines.

After the prongs 18 and 19, enter the per- 1 foration in the casing, the head sections are brought together and by means of a screw 23, the beveled surfaces 24 and 25, are brought together bringing the ends of the prongs, 18 and 19, tightly against the inside of the casing 5, thus assuringrigidity to the member when attached to the casing.

Figure 7, shows the appearance of the de vice when finally set into position. To prevent accidental displacement of the screw 23, the end of same may be hammered or riveted over as at 26.

Various modifications may be embodied without departing from the spirit of this invention and it is not intended therefore to limit this invention to the particular embodiments shown.

Whatis claimed is:

In combination with a metal window casing having a hole through a Wall of the cascomplementary members together to contact 10 ing, a support member comprising two comin a plane at an angle to the face of the easplementary members both of which have ing, so. that they will bear against both the portions which are adapted to pass through inner and outerv faces of the wall of the the same hole and to have their ends bear casing.

against the rear side of the wall of the cas- Signed-at New York, in the county of 1 ing and each having a portion adapted to New York, and State of New York, this 1st limit the distance suchmember can pass dayiof April, A. D. 1926.

into said hole, and means for drawing said AMSON G. ILLCH. 

